PURLs (Persistent Uniform Resource Locators) are Web addresses that act as permanent identifiers in the face of a dynamic and changing Web infrastructure.
This document describes the Media Fragments 1.0 specification. It specifies the syntax for constructing media fragment URIs and explains how to handle them when used over the HTTP protocol.
G. Manku, A. Jain, and A. Sarma. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 141--150. New York, NY, USA, ACM, (2007)
Z. Bar-Yossef, I. Keidar, and U. Schonfeld. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 111--120. New York, NY, USA, ACM, (2007)
A. Broder, M. Najork, and J. Wiener. WWW '03: Proceedings of the 12th international conference on World Wide Web, page 679--689. New York, NY, USA, ACM, (2003)